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git/git-commit.sh
Junio C Hamano 5e7f56ac33 git-read-tree --index-output=<file> 
This corrects the interface mistake of the previous one, and
gives a command line parameter to the only plumbing command that
currently needs it: "git-read-tree".

We can add the calls to set_alternate_index_output() to other
plumbing commands that update the index if/when needed.

Signed-off-by: Junio C Hamano <junkio@cox.net>
2007-04-03 23:44:32 -07:00

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#!/bin/sh
#
# Copyright (c) 2005 Linus Torvalds
# Copyright (c) 2006 Junio C Hamano
USAGE='[-a | --interactive] [-s] [-v] [--no-verify] [-m <message> | -F <logfile> | (-C|-c) <commit> | --amend] [-u] [-e] [--author <author>] [[-i | -o] <path>...]'
SUBDIRECTORY_OK=Yes
. git-sh-setup
require_work_tree
git-rev-parse --verify HEAD >/dev/null 2>&1 || initial_commit=t
case "$0" in
*status)
status_only=t
;;
*commit)
status_only=
;;
esac
refuse_partial () {
echo >&2 "$1"
echo >&2 "You might have meant to say 'git commit -i paths...', perhaps?"
exit 1
}
THIS_INDEX="$GIT_DIR/index"
NEXT_INDEX="$GIT_DIR/next-index$$"
rm -f "$NEXT_INDEX"
save_index () {
cp -p "$THIS_INDEX" "$NEXT_INDEX"
}
run_status () {
# If TMP_INDEX is defined, that means we are doing
# "--only" partial commit, and that index file is used
# to build the tree for the commit. Otherwise, if
# NEXT_INDEX exists, that is the index file used to
# make the commit. Otherwise we are using as-is commit
# so the regular index file is what we use to compare.
if test '' != "$TMP_INDEX"
then
GIT_INDEX_FILE="$TMP_INDEX"
export GIT_INDEX_FILE
elif test -f "$NEXT_INDEX"
then
GIT_INDEX_FILE="$NEXT_INDEX"
export GIT_INDEX_FILE
fi
case "$status_only" in
t) color= ;;
*) color=--nocolor ;;
esac
git-runstatus ${color} \
${verbose:+--verbose} \
${amend:+--amend} \
${untracked_files:+--untracked}
}
trap '
test -z "$TMP_INDEX" || {
test -f "$TMP_INDEX" && rm -f "$TMP_INDEX"
}
rm -f "$NEXT_INDEX"
' 0
################################################################
# Command line argument parsing and sanity checking
all=
also=
interactive=
only=
logfile=
use_commit=
amend=
edit_flag=
no_edit=
log_given=
log_message=
verify=t
quiet=
verbose=
signoff=
force_author=
only_include_assumed=
untracked_files=
while case "$#" in 0) break;; esac
do
case "$1" in
-F|--F|-f|--f|--fi|--fil|--file)
case "$#" in 1) usage ;; esac
shift
no_edit=t
log_given=t$log_given
logfile="$1"
shift
;;
-F*|-f*)
no_edit=t
log_given=t$log_given
logfile=`expr "z$1" : 'z-[Ff]\(.*\)'`
shift
;;
--F=*|--f=*|--fi=*|--fil=*|--file=*)
no_edit=t
log_given=t$log_given
logfile=`expr "z$1" : 'z-[^=]*=\(.*\)'`
shift
;;
-a|--a|--al|--all)
all=t
shift
;;
--au=*|--aut=*|--auth=*|--autho=*|--author=*)
force_author=`expr "z$1" : 'z-[^=]*=\(.*\)'`
shift
;;
--au|--aut|--auth|--autho|--author)
case "$#" in 1) usage ;; esac
shift
force_author="$1"
shift
;;
-e|--e|--ed|--edi|--edit)
edit_flag=t
shift
;;
-i|--i|--in|--inc|--incl|--inclu|--includ|--include)
also=t
shift
;;
--int|--inte|--inter|--intera|--interac|--interact|--interacti|\
--interactiv|--interactive)
interactive=t
shift
;;
-o|--o|--on|--onl|--only)
only=t
shift
;;
-m|--m|--me|--mes|--mess|--messa|--messag|--message)
case "$#" in 1) usage ;; esac
shift
log_given=m$log_given
if test "$log_message" = ''
then
log_message="$1"
else
log_message="$log_message
$1"
fi
no_edit=t
shift
;;
-m*)
log_given=m$log_given
if test "$log_message" = ''
then
log_message=`expr "z$1" : 'z-m\(.*\)'`
else
log_message="$log_message
`expr "z$1" : 'z-m\(.*\)'`"
fi
no_edit=t
shift
;;
--m=*|--me=*|--mes=*|--mess=*|--messa=*|--messag=*|--message=*)
log_given=m$log_given
if test "$log_message" = ''
then
log_message=`expr "z$1" : 'z-[^=]*=\(.*\)'`
else
log_message="$log_message
`expr "z$1" : 'zq-[^=]*=\(.*\)'`"
fi
no_edit=t
shift
;;
-n|--n|--no|--no-|--no-v|--no-ve|--no-ver|--no-veri|--no-verif|\
--no-verify)
verify=
shift
;;
--a|--am|--ame|--amen|--amend)
amend=t
log_given=t$log_given
use_commit=HEAD
shift
;;
-c)
case "$#" in 1) usage ;; esac
shift
log_given=t$log_given
use_commit="$1"
no_edit=
shift
;;
--ree=*|--reed=*|--reedi=*|--reedit=*|--reedit-=*|--reedit-m=*|\
--reedit-me=*|--reedit-mes=*|--reedit-mess=*|--reedit-messa=*|\
--reedit-messag=*|--reedit-message=*)
log_given=t$log_given
use_commit=`expr "z$1" : 'z-[^=]*=\(.*\)'`
no_edit=
shift
;;
--ree|--reed|--reedi|--reedit|--reedit-|--reedit-m|--reedit-me|\
--reedit-mes|--reedit-mess|--reedit-messa|--reedit-messag|\
--reedit-message)
case "$#" in 1) usage ;; esac
shift
log_given=t$log_given
use_commit="$1"
no_edit=
shift
;;
-C)
case "$#" in 1) usage ;; esac
shift
log_given=t$log_given
use_commit="$1"
no_edit=t
shift
;;
--reu=*|--reus=*|--reuse=*|--reuse-=*|--reuse-m=*|--reuse-me=*|\
--reuse-mes=*|--reuse-mess=*|--reuse-messa=*|--reuse-messag=*|\
--reuse-message=*)
log_given=t$log_given
use_commit=`expr "z$1" : 'z-[^=]*=\(.*\)'`
no_edit=t
shift
;;
--reu|--reus|--reuse|--reuse-|--reuse-m|--reuse-me|--reuse-mes|\
--reuse-mess|--reuse-messa|--reuse-messag|--reuse-message)
case "$#" in 1) usage ;; esac
shift
log_given=t$log_given
use_commit="$1"
no_edit=t
shift
;;
-s|--s|--si|--sig|--sign|--signo|--signof|--signoff)
signoff=t
shift
;;
-q|--q|--qu|--qui|--quie|--quiet)
quiet=t
shift
;;
-v|--v|--ve|--ver|--verb|--verbo|--verbos|--verbose)
verbose=t
shift
;;
-u|--u|--un|--unt|--untr|--untra|--untrac|--untrack|--untracke|\
--untracked|--untracked-|--untracked-f|--untracked-fi|--untracked-fil|\
--untracked-file|--untracked-files)
untracked_files=t
shift
;;
--)
shift
break
;;
-*)
usage
;;
*)
break
;;
esac
done
case "$edit_flag" in t) no_edit= ;; esac
################################################################
# Sanity check options
case "$amend,$initial_commit" in
t,t)
die "You do not have anything to amend." ;;
t,)
if [ -f "$GIT_DIR/MERGE_HEAD" ]; then
die "You are in the middle of a merge -- cannot amend."
fi ;;
esac
case "$log_given" in
tt*)
die "Only one of -c/-C/-F/--amend can be used." ;;
*tm*|*mt*)
die "Option -m cannot be combined with -c/-C/-F/--amend." ;;
esac
case "$#,$also,$only,$amend" in
*,t,t,*)
die "Only one of --include/--only can be used." ;;
0,t,,* | 0,,t,)
die "No paths with --include/--only does not make sense." ;;
0,,t,t)
only_include_assumed="# Clever... amending the last one with dirty index." ;;
0,,,*)
;;
*,,,*)
only_include_assumed="# Explicit paths specified without -i nor -o; assuming --only paths..."
also=
;;
esac
unset only
case "$all,$interactive,$also,$#" in
*t,*t,*)
die "Cannot use -a, --interactive or -i at the same time." ;;
t,,[1-9]*)
die "Paths with -a does not make sense." ;;
,t,[1-9]*)
die "Paths with --interactive does not make sense." ;;
,,t,0)
die "No paths with -i does not make sense." ;;
esac
################################################################
# Prepare index to have a tree to be committed
case "$all,$also" in
t,)
if test ! -f "$THIS_INDEX"
then
die 'nothing to commit (use "git add file1 file2" to include for commit)'
fi
save_index &&
(
cd_to_toplevel &&
GIT_INDEX_FILE="$NEXT_INDEX" &&
export GIT_INDEX_FILE &&
git-diff-files --name-only -z |
git-update-index --remove -z --stdin
) || exit
;;
,t)
save_index &&
git-ls-files --error-unmatch -- "$@" >/dev/null || exit
git-diff-files --name-only -z -- "$@" |
(
cd_to_toplevel &&
GIT_INDEX_FILE="$NEXT_INDEX" &&
export GIT_INDEX_FILE &&
git-update-index --remove -z --stdin
) || exit
;;
,)
if test "$interactive" = t; then
git add --interactive || exit
fi
case "$#" in
0)
;; # commit as-is
*)
if test -f "$GIT_DIR/MERGE_HEAD"
then
refuse_partial "Cannot do a partial commit during a merge."
fi
TMP_INDEX="$GIT_DIR/tmp-index$$"
commit_only=`git-ls-files --error-unmatch -- "$@"` || exit
# Build a temporary index and update the real index
# the same way.
if test -z "$initial_commit"
then
GIT_INDEX_FILE="$THIS_INDEX" \
git-read-tree --index-output="$TMP_INDEX" -i -m HEAD
else
rm -f "$TMP_INDEX"
fi || exit
echo "$commit_only" |
GIT_INDEX_FILE="$TMP_INDEX" \
git-update-index --add --remove --stdin &&
save_index &&
echo "$commit_only" |
(
GIT_INDEX_FILE="$NEXT_INDEX"
export GIT_INDEX_FILE
git-update-index --remove --stdin
) || exit
;;
esac
;;
esac
################################################################
# If we do as-is commit, the index file will be THIS_INDEX,
# otherwise NEXT_INDEX after we make this commit. We leave
# the index as is if we abort.
if test -f "$NEXT_INDEX"
then
USE_INDEX="$NEXT_INDEX"
else
USE_INDEX="$THIS_INDEX"
fi
case "$status_only" in
t)
# This will silently fail in a read-only repository, which is
# what we want.
GIT_INDEX_FILE="$USE_INDEX" git-update-index -q --unmerged --refresh
run_status
exit $?
;;
'')
GIT_INDEX_FILE="$USE_INDEX" git-update-index -q --refresh || exit
;;
esac
################################################################
# Grab commit message, write out tree and make commit.
if test t = "$verify" && test -x "$GIT_DIR"/hooks/pre-commit
then
if test "$TMP_INDEX"
then
GIT_INDEX_FILE="$TMP_INDEX" "$GIT_DIR"/hooks/pre-commit
else
GIT_INDEX_FILE="$USE_INDEX" "$GIT_DIR"/hooks/pre-commit
fi || exit
fi
if test "$log_message" != ''
then
echo "$log_message"
elif test "$logfile" != ""
then
if test "$logfile" = -
then
test -t 0 &&
echo >&2 "(reading log message from standard input)"
cat
else
cat <"$logfile"
fi
elif test "$use_commit" != ""
then
encoding=$(git config i18n.commitencoding || echo UTF-8)
git show -s --pretty=raw --encoding="$encoding" "$use_commit" |
sed -e '1,/^$/d' -e 's/^ //'
elif test -f "$GIT_DIR/MERGE_MSG"
then
cat "$GIT_DIR/MERGE_MSG"
elif test -f "$GIT_DIR/SQUASH_MSG"
then
cat "$GIT_DIR/SQUASH_MSG"
fi | git-stripspace >"$GIT_DIR"/COMMIT_EDITMSG
case "$signoff" in
t)
need_blank_before_signoff=
tail -n 1 "$GIT_DIR"/COMMIT_EDITMSG |
grep 'Signed-off-by:' >/dev/null || need_blank_before_signoff=yes
{
test -z "$need_blank_before_signoff" || echo
git-var GIT_COMMITTER_IDENT | sed -e '
s/>.*/>/
s/^/Signed-off-by: /
'
} >>"$GIT_DIR"/COMMIT_EDITMSG
;;
esac
if test -f "$GIT_DIR/MERGE_HEAD" && test -z "$no_edit"; then
echo "#"
echo "# It looks like you may be committing a MERGE."
echo "# If this is not correct, please remove the file"
echo "# $GIT_DIR/MERGE_HEAD"
echo "# and try again"
echo "#"
fi >>"$GIT_DIR"/COMMIT_EDITMSG
# Author
if test '' != "$use_commit"
then
pick_author_script='
/^author /{
s/'\''/'\''\\'\'\''/g
h
s/^author \([^<]*\) <[^>]*> .*$/\1/
s/'\''/'\''\'\'\''/g
s/.*/GIT_AUTHOR_NAME='\''&'\''/p
g
s/^author [^<]* <\([^>]*\)> .*$/\1/
s/'\''/'\''\'\'\''/g
s/.*/GIT_AUTHOR_EMAIL='\''&'\''/p
g
s/^author [^<]* <[^>]*> \(.*\)$/\1/
s/'\''/'\''\'\'\''/g
s/.*/GIT_AUTHOR_DATE='\''&'\''/p
q
}
'
encoding=$(git config i18n.commitencoding || echo UTF-8)
set_author_env=`git show -s --pretty=raw --encoding="$encoding" "$use_commit" |
LANG=C LC_ALL=C sed -ne "$pick_author_script"`
eval "$set_author_env"
export GIT_AUTHOR_NAME
export GIT_AUTHOR_EMAIL
export GIT_AUTHOR_DATE
fi
if test '' != "$force_author"
then
GIT_AUTHOR_NAME=`expr "z$force_author" : 'z\(.*[^ ]\) *<.*'` &&
GIT_AUTHOR_EMAIL=`expr "z$force_author" : '.*\(<.*\)'` &&
test '' != "$GIT_AUTHOR_NAME" &&
test '' != "$GIT_AUTHOR_EMAIL" ||
die "malformed --author parameter"
export GIT_AUTHOR_NAME GIT_AUTHOR_EMAIL
fi
PARENTS="-p HEAD"
if test -z "$initial_commit"
then
rloga='commit'
if [ -f "$GIT_DIR/MERGE_HEAD" ]; then
rloga='commit (merge)'
PARENTS="-p HEAD "`sed -e 's/^/-p /' "$GIT_DIR/MERGE_HEAD"`
elif test -n "$amend"; then
rloga='commit (amend)'
PARENTS=$(git-cat-file commit HEAD |
sed -n -e '/^$/q' -e 's/^parent /-p /p')
fi
current="$(git-rev-parse --verify HEAD)"
else
if [ -z "$(git-ls-files)" ]; then
echo >&2 'nothing to commit (use "git add file1 file2" to include for commit)'
exit 1
fi
PARENTS=""
rloga='commit (initial)'
current=''
fi
set_reflog_action "$rloga"
if test -z "$no_edit"
then
{
echo ""
echo "# Please enter the commit message for your changes."
echo "# (Comment lines starting with '#' will not be included)"
test -z "$only_include_assumed" || echo "$only_include_assumed"
run_status
} >>"$GIT_DIR"/COMMIT_EDITMSG
else
# we need to check if there is anything to commit
run_status >/dev/null
fi
if [ "$?" != "0" -a ! -f "$GIT_DIR/MERGE_HEAD" -a -z "$amend" ]
then
rm -f "$GIT_DIR/COMMIT_EDITMSG" "$GIT_DIR/SQUASH_MSG"
run_status
exit 1
fi
case "$no_edit" in
'')
case "${VISUAL:-$EDITOR},$TERM" in
,dumb)
echo >&2 "Terminal is dumb but no VISUAL nor EDITOR defined."
echo >&2 "Please supply the commit log message using either"
echo >&2 "-m or -F option. A boilerplate log message has"
echo >&2 "been prepared in $GIT_DIR/COMMIT_EDITMSG"
exit 1
;;
esac
git-var GIT_AUTHOR_IDENT > /dev/null || die
git-var GIT_COMMITTER_IDENT > /dev/null || die
${VISUAL:-${EDITOR:-vi}} "$GIT_DIR/COMMIT_EDITMSG"
;;
esac
case "$verify" in
t)
if test -x "$GIT_DIR"/hooks/commit-msg
then
"$GIT_DIR"/hooks/commit-msg "$GIT_DIR"/COMMIT_EDITMSG || exit
fi
esac
if test -z "$no_edit"
then
sed -e '
/^diff --git a\/.*/{
s///
q
}
/^#/d
' "$GIT_DIR"/COMMIT_EDITMSG
else
cat "$GIT_DIR"/COMMIT_EDITMSG
fi |
git-stripspace >"$GIT_DIR"/COMMIT_MSG
if cnt=`grep -v -i '^Signed-off-by' "$GIT_DIR"/COMMIT_MSG |
git-stripspace |
wc -l` &&
test 0 -lt $cnt
then
if test -z "$TMP_INDEX"
then
tree=$(GIT_INDEX_FILE="$USE_INDEX" git-write-tree)
else
tree=$(GIT_INDEX_FILE="$TMP_INDEX" git-write-tree) &&
rm -f "$TMP_INDEX"
fi &&
commit=$(cat "$GIT_DIR"/COMMIT_MSG | git-commit-tree $tree $PARENTS) &&
rlogm=$(sed -e 1q "$GIT_DIR"/COMMIT_MSG) &&
git-update-ref -m "$GIT_REFLOG_ACTION: $rlogm" HEAD $commit "$current" &&
rm -f -- "$GIT_DIR/MERGE_HEAD" "$GIT_DIR/MERGE_MSG" &&
if test -f "$NEXT_INDEX"
then
mv "$NEXT_INDEX" "$THIS_INDEX"
else
: ;# happy
fi
else
echo >&2 "* no commit message? aborting commit."
false
fi
ret="$?"
rm -f "$GIT_DIR/COMMIT_MSG" "$GIT_DIR/COMMIT_EDITMSG" "$GIT_DIR/SQUASH_MSG"
cd_to_toplevel
if test -d "$GIT_DIR/rr-cache"
then
git-rerere
fi
if test "$ret" = 0
then
if test -x "$GIT_DIR"/hooks/post-commit
then
"$GIT_DIR"/hooks/post-commit
fi
if test -z "$quiet"
then
echo "Created${initial_commit:+ initial} commit $commit"
git-diff-tree --shortstat --summary --root --no-commit-id HEAD --
fi
fi
exit "$ret"
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